Raspberry Pi Forums

cruster

If possible, I'd like to set aside 1024Mb of the 4Gb memory available for GPU memory use. I've tried adding the 'gpu_mem_1024' command in config.txt which then sees me with 64Mb on reboot. I've tried setting the maximum setting in Raspberry Pi Configuration for GPU memory, which is "896" which doesn...

cruster

I've compiled a PDF with a lot of technical information & details about the Pi 4 - thanks go out to the Raspberry Pi engineering and commercial teams for answering my and many other reseller's questions. https://cdn.shopify.com/s/files/1/1560/1473/files/Inside_Raspberry_Pi_4.pdf?2142 That is very u...

cruster

Awesome! Thank you

cruster

Any Camera experts back from the weekend?

cruster

Ok, thanks Jamesh

cruster

Hi all, In a room with yellow walls, the section of code below renders the walls the correct colour on the v1 camera. but with the v2 camera the same code attempts to render the walls white. Does anyone know which setting I need to tweak in order to prevent this? with picamera.PiCamera() as camera: ...

cruster

ziddey wrote:Just use the dtparam:
dtparam=sd_overclock=100

Note: for rpi3, you'll need to rpi-update.

Gosh! What a difference on my Sandisk Extreme. Thank you so much!

cruster

Thank you!

cruster

Rpi3, latest jessie pixel.

I'd like to uninstall Mathematica and then re-install it. Can anyone let me know what the correct commands are to do this?

cruster

Nickcn wrote: Here is chrome (chromium), and it works perfect with the pi3

Thank you!

cruster

GTR2Fan wrote:viewtopic.php?f=63&t=121195&hilit=chromium+48

Thanks. I'll give that a try.

cruster

Nickcn wrote:...
Because I am using Chromium on my pi3 w/Rasbian-Jessie, to watch youtube videos full screen.

I tried "sudo apt-get install chromium-browser" but got a message saying the package was missing, has been obsoleted or is only available from another source. Any ideas where I can get it?

cruster

This cannot work, at least not without a workaround, which has never been tried. While the video is decoded by the GPU, it has to be copied back into the frame buffer in real time to appear inside the window. This does work for medium image sizes, but not for a whole screen. There are other solutio...

cruster

- prone to randomly crashing back to desktop when playing youtube videos full screen. Operating system is up to date: apt-get update and apt-get upgrade. Pi2 and Pi3 same behaviour. Known issue? Any fixes?

cruster

Anyone else experiencing on board audio interference from the onboard Wi-Fi ? Have tried audio through HDMIPI and as well direct from the pi through the 4 pin 3.5mm jack to an amplifier. Same interference.

With a pi2, and with exact same setup - but using a USB WIFI adapter. No problems at all ?

cruster

Thanks for the link - I may have to give this one a try

cruster

Are you sure the pi lens isn't the one on the left? The one on the right looks a lot longer than the pi's 3.6mm. I'd guess the one on the right is more like a 6mm+ ?

Either way, can you post the link to the better lens - the one on the left that you used?

cruster

'-st' switch. See here: viewtopic.php?f=43&t=105376

cruster

Ah. Found the original link I mentioned: viewtopic.php?f=43&t=84416

cruster

Oh wow that's quite a difference. Great stuff! Glad it worked

cruster

With my fiddlings with the picam - there was a time following some firmware/software upgrades where folk started to mention odd colour casts appearing (if memory serves me) usually towards the center of the image. It's definitely worth trying out the '-st' switch as that appeared to have resolved al...

cruster

How did you connect and power the rhino servo motor to your pi?

cruster

Thanks for posting the script. Looks fun! I'll be giving this a try later.

cruster

I found I was seeing a similar colour cast (although not as pronounced as this) when I switched to a 6mm CS lens.
You could try the '-st' switch: "raspistill -st -o test.jpg" - something to do with recalculating the white balance, it solved the issue for me.

cruster

Thank you Gordon, this has given me another avenue to explore. I've downloaded your programme and will take a good look at it as I'm unfamiliar with subprocesses. I used a thread which worked well for me, but that was to accept keyboard input without having my main loop pause.

Search found 119 matches

Pi4 with 4Gb Ram. Setting max mem for GPU ?

Re: Inside Pi 4

Re: White balance on v2 camera ?

Re: White balance on v2 camera ?

Re: White balance on v2 camera ?

White balance on v2 camera ?

Re: Raspberry Pi 3 microSD card overclock

Re: Uninstall/reinstall Mathematica?

Uninstall/reinstall Mathematica?

Re: Epiphany web-browser -

Re: Epiphany web-browser -

Re: Epiphany web-browser -

Re: Epiphany web-browser -

Epiphany web-browser -

Re: The Raspberry Pi 3 Model B Q&A thread

Re: Image quality comparison with alternate lens (wow!)

Re: Image quality comparison with alternate lens (wow!)

Re: picamera - Issue with white balance or damaged

Re: Watch the Birdie...

Re: Watch the Birdie...

Re: Watch the Birdie...

Re: Problem related Raspberry pi burnout

Re: Python Picamera Simple Motion

Re: Watch the Birdie...

Re: Picamera. Manual control possible?